SIMULATION OF FLOW FIELD AND PERFORMANCE ANALYSIS OF CROSS-FLOW FAN

Hu Junwei  Ding Guoliang  Zhao Li  Zhang Chunlu

(Institute of Refrigeration & Cryogentics, Shanghai Jiaotong University, Shanghai 200030)

Abstract: The internal flow of a cross-flow fan is simulated with CFD software STAR-CD, and the influence of structure parameters on the performance of the cross-flow fan is analyzed. The structure parameters include volute tongue clearance, inlet angle, volute case clearance, volute tongue angle, outlet angle and so on. Based on the analysis of the influences of the structure parameters on the velocity of inlet and outlet, the relationship between the structure parameters and the flow filed of the cross-flow fan can be determined. Some calculated results are verified by the experimental data and show they are reasonable.

Key words: Cross-flow fan  CFD  Structure parameters  Numerical simulation

CLC No: TH432

国家重点基础规划973研究资助项目(G2000026309). Received 30125, received in revised form 20030922